<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
  <style>
    h1{
      color:red;
      color:#ff00f0;
      color:#ff0;
      color: rgb(244,78,9);
      color:rgba(200,80,99,0.8);
    }
    #d1{
      width: 100px ;
      height: 100px;
      background-color: #ee00f0;
      background-image: url("../3.jpg");
      background-size: 50% 50%;
      background-repeat: no-repeat;
      background-position: 25px 25px;
      /*background-position: 50% 50%;*/


    }
    #d2{
      width: 611px;
      height: 376px;
      background-color: #e8e8e8;
      background-image: url("http://doc.vrd.net.cn/tstore_v1/images/itemCat/study_computer_img1.png");
      background-size: 318px 319px;
      background-repeat: no-repeat;
      background-position: 90% 80%;

    }
    #d3{
      width: 375px;
      height: 376px;
      background-color: #e8e8e8;
      background-image: url("http://doc.vrd.net.cn/tstore_v1/images/itemCat/study_computer_img2.png");
      background-size: 292px 232px;
      background-repeat: no-repeat;
      background-position: 80% 90%;
    }

  </style>
</head>
<body>
<div id="d1"></div>
<div id="d2"></div>
<div id="d3"></div>

<h1>颜色测试</h1>


</body>
</html>